<?php

namespace KupShop\ProductCompareBundle\Controller;

use KupShop\KupShopBundle\Routing\TranslatedRoute;
use KupShop\KupShopBundle\Util\Functional\Mapping;
use KupShop\ProductCompareBundle\View\ProductCompareView;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Session\SessionInterface;

class ProductCompareController extends AbstractController
{
    private const SESSION_PRODUCT_COMPARE = 'productCompare';

    private $session;

    public function __construct(SessionInterface $session)
    {
        $this->session = $session;
    }

    /**
     * @TranslatedRoute("/#product_compare#/")
     */
    public function productCompareAction(Request $request, ProductCompareView $view): Response
    {
        $ids = $request->query->all('id');
        $ids = Mapping::mapKeys($ids, fn ($k, $v) => [$v, true]);

        if (findModule(\Modules::JS_SHOP, \Modules::SUB_JS_SHOP_PRODUCTS_COMPARE)) {
            $view->setProductIds(array_keys($ids));

            return $view->getResponse();
        }

        if (!empty($ids)) {
            // override session with ids from GET parameters
            $this->session->set(self::SESSION_PRODUCT_COMPARE, (array) $ids);

            return new RedirectResponse(path('kupshop_productcompare_productcompare_productcompare'));
        }

        $products = $this->session->get(self::SESSION_PRODUCT_COMPARE, []);

        $view->setProductIds(array_keys($products));

        return $view->getResponse();
    }

    /**
     * @TranslatedRoute("/#product_compare#/add/{productId}/", requirements={"productId"="\d+"})
     */
    public function addProductAction(Request $request, int $productId): Response
    {
        $products = $this->session->get(self::SESSION_PRODUCT_COMPARE, []);
        $products[$productId] = true;

        $this->session->set(self::SESSION_PRODUCT_COMPARE, $products);

        if (isAjax()) {
            return new Response('OK');
        }

        return new RedirectResponse($request->headers->get('referer', '/'));
    }

    /**
     * @TranslatedRoute("/#product_compare#/remove/{productId}/", requirements={"productId"="\d+"})
     */
    public function removeProductAction(Request $request, int $productId): Response
    {
        $products = $this->session->get(self::SESSION_PRODUCT_COMPARE, []);
        unset($products[$productId]);

        $this->session->set(self::SESSION_PRODUCT_COMPARE, $products);

        if (isAjax()) {
            return new Response('OK');
        }

        return new RedirectResponse($request->headers->get('referer', '/'));
    }
}